Microoganism for producing fk-506
CA 2059706 A1 · Owner: Matas, Teresa D. · Inventors: Salituro, Gino M.; Dumont, Francis; Omstead, Mary N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
9836P/0800A, Case 18239, TITLE OF THE INVENTION NEW PROCESS FOR PRODUCING FK-506, ABSTRACT OF THE DISCLOSURE Described is a new process for producing the macrolide immunosuppressant, FK-506 under fermentation conditions utilizing the microorganism Streptomyces sp. (Merck Culture Collection No. MA 6858) ATCC No. 55098. The immunosuppressant is useful in preventing human host rejection of foreign organ transplants e.g. bone marrow, and heart transplants.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.